On November 6, 1992, the Secret Service shut down a 2600 Meeting in
what has proven to be an ill-fated and embarrassing move for them.
What they failed to take into account was how quickly word of this
action would spread within the hacker community and, eventually, into
the mainstream. The Secret Service was not prepared for this and
apparently never expected their role in the operation to be revealed.
(Local security at the Pentagon City Mall in Washington, DC had been
instructed by the Secret Service to shut down the meeting and take
names and addresses. What they hadn't counted on was the security chief
telling a reporter that his orders came from the Secret Service.)

Immediately after the incident, Computer Professionals for Social
Responsibility (CPSR) took on the case on behalf of the Washington DC
2600 Meeting. They have been trying to get information out of the
Secret Service ever since.